Home / 120,374.07-166,114.16-66,657.93

Finding the Fourth Proportional to 120,374.07, 166,114.16 and 66,657.93

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Solution

The fourth proportional to 120,374.07, 166,114.16 and 66,657.93 is: 91,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,374.07 : 166,114.16 = 66,657.93 : x
  2. Step 2: Convert to fraction form
    120,374.07/166,114.16 = 66,657.93/x
  3. Step 3: Cross multiply
    120,374.07x = 166,114.16 × 66,657.93
  4. Step 4: Simplify right side
    120,374.07x = 11,072,825,716.00
  5. Step 5: Solve for x
    x = 11,072,825,716.00/120,374.07
  6. Step 6: Final answer
    x = 91,986.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.